If your compression is good and you are not burning
oil why mess with pulling the pistons and doing the re-ring job. It does take some skill to do a good hone job, and you can mess it up so the new rings will not seal. If you have to fix the
oil pan leak, go ahead and check the bearings while you are there. If you just want to pull the pistons send me a PM and I can run you through the process of honing cylinders.
Honestly, if you have never done this before Power House tools has a decent video on building a small block chevy that is pretty good. I would get that for starters to understand the basics.
Wayne